Immune system of shark
- 1. Immune System of shark Sharks do not chew their food at all. Their teeth are designed primarily to capture or tear their prey. The food is stored in the stomach for a variable period of time usually three days (although a study of a tiger shark that died in captivity revealed that at the time of his death had on the inside of his stomach remains undigested 2 weeks). The stomach releases strong acid that breaks down food and passes into the intestine where all the nutrients are absorbed. What cannot be absorbed passes into the colon before being released to the ocean where they serve as food for plants and bacteria? The digestive system liver is your largest organ and accounts for up to 25% by weight of the shark. Liver, being very rich in fat, very low density has a dual function- firstly to accumulate energy and other almost neutral buoyancy which allows up and down with the same ease with which fish do. (Remember that the shark has no swim bladder) Scientists around the world are trying to determine the cause of the extraordinary resistance to contract bacterial infections, parasitic infections or cancer that sharks possess. Several theories exist one of which suggests that the proteins and minerals found in the cartilaginous skeleton prevent infections. Another recently published theory is based on the discovery of a chemical called squalene (found in the liver of shark) but this research is currently in development. There biologists who think that the key to the resistance of cancer is in the cartilage of sharks. The minerals and proteins prevent the formation of new vessels. Without blood a tumor does not get the energy needed to grow and therefore the theory goes will decrease. This theory is still controversial the immune system has a protein retards tumor growth. If this protein is likely to be used in humans perhaps could develop cancer drugs. Much of what we know about the human kidney function was discovered working with sharks. The main component of cartilage which comprises the entire skeleton of sharks has been used to create artificial skin for burn victims. There have been successful corneal transplants shark in human eyes. The shark liver oil is the basic ingredient in the production of various medicines. The immune system creates antibodies sharks general and non-specific as ours. This means that the antibody can fight disease since it is exposed to Studies of these properties. In the future, we might be able to better understand ourselves, based on how other intelligent creatures see us... Some sharks such as dogfish thorny, seem never to sleep completely, because they continue swimming while “sleeping”. Researchers continue to study the sharks to learn more about what happens inside your brain during sleep periods which could help the treatment of sleep disorders in humans. Researchers are developing new coverage for boats from the scales of sharks. Because of its shape, size and texture, these scales help prevent algae and other organisms affect sharks. The designers plan to extend this condition to craft. To know more about Sharks: http://extremesharkfacts.com/